Indirect ophthalmoscopy lens retaining ring



FIG. 1 is a side elevational view of an indirect ophthalmoscopy lens retaining ring, showing our new design;

FIG. 2 is a cross-sectional view taken along line 2—2 of FIG. 1;

FIG. 3 is an end elevational view taken from the right of FIG. 1; and,

FIG. 4 is an end elevational view taken from the left of FIG. 1. 

We claim the ornamental design for an indirect ophthalmoscopy lens retaining ring, as shown and described. 